Journal article
F 19 NMR investigation of the iron pnictide superconductor LaFeAsO0.89F0.11
Abstract
We report on F 19 nuclear magnetic resonance (NMR) investigation of the high-temperature superconductor LaFeAsO0.89F0.11 (Tc∼28 K). We demonstrate that low-frequency spin fluctuations exhibit pseudogap behavior above Tc. We also deduce the London penetration depth λ from NMR line broadening below Tc.
Authors
Ahilan K; Ning FL; Imai T; Sefat AS; Jin R; McGuire MA; Sales BC; Mandrus D
Journal
Physical Review B, Vol. 78, No. 10,
Publisher
American Physical Society (APS)
Publication Date
September 1, 2008
DOI
10.1103/physrevb.78.100501
ISSN
2469-9950